Table 5: Impact of pre-operative variables on post-operative AC gain.
| ≥ 20 dB, n = (%) | < 20 dB, n = (%) | Significance, p = | Odds ratio (95% CI) | |
|---|---|---|---|---|
| Age | ||||
| ≤ 50 (n = 53) | 41 (78.4) | 9 (21.6) | 0.467 | 0.246 (0.051-1.243) |
| > 50 (n = 39) | 37 (82.1) | 2 (17.9) | ||
| Gender | ||||
| M (n = 45) | 37 (73.3) | 8 (26.7) | 0.098 | 0.330 (0.017-2.329) |
| F (n = 45) | 42 (86.7) | 3 (13.3) | ||
| Bilaterality of disease | ||||
| Unilateral (n = 16) | 13 (68.8) | 3 (31.2) | 0.304 | 0.525 (0.445-8.150) |
| Bilateral (n = 74) | 66 (82.4) | 8 (17.6) | ||
| Pre-operative AC | ||||
| > 70 (n = 36) | 33 (94.4) | 3 (5.6) | 0.139 | 1.913 (0.017-1.143) |
| ≤ 70 (n = 54) | 46 (70.4) | 8 (29.6) | ||
| Pre-operative BC | ||||
| > 30 (n = 49) | 43 (76.3) | 6 (23.7) | 0.626 | 0.995 (0.283-3.566) |
| ≤ 30 (n = 41) | 36 (87.1) | 5 (12.9) | ||
| Pre-operative ABG | ||||
| > 30 (n = 60) | 57 (76.7) | 3 (23.3) | 0.174 | 6.909 (0.822-7.037) |
| ≤ 30 (n = 30) | 22 (86.7) | 8 (13.3) | ||